• Rene Opsenak, Martin Hanko, Martin Benco, Pavol Snopko, Romana Richterova, and Branislav Kolarovszki.
• Bratisl Med J. 2023 Jan 1; 124 (1): 3113-11.

ObjectivesTo identify risk factors for unilateral non-acute subdural hematomas NASH recurrence, as well as to perform volumetric quantitative analysis of hematoma, postoperative pneumocephalus and extent of hematoma evacuation.BackgroundRecurrence of NASH increases morbidity and mortality and has negative socio-economic consequences. Its accurate prediction could improve patient specific care.MethodsRecords of 102 patients after unilateral NASH evacuation during the period from 2014 to 2020 with a 4-month follow-up were evaluated. Impacts of preoperative clinical signs and factors on the incidence of NASH recurrence were evaluated, namely those of age, gender, timing of surgery, hematoma side, surgical technique (number of burr holes, trepanation versus craniotomy), duration of drainage, antithrombotic agents, morphological type of hematoma, preoperative hematoma volume (PHV), post-evacuation hematoma cavity volume (PHCV), pneumocephalus volume (PCV) and extent of hematoma evacuation (EHE) on the incidence of NASH recurrence were evaluated.ResultsAn overall recurrence rate of 13.7 % was observed. Preoperative hematoma volume, postoperative hematoma cavity volume and postoperative pneumocephalus volume had a significant impact on incidence of recurrence.ConclusionsPre- and postoperative volumetric evaluations, of patients with NASH, particularly the measurements of preoperative hematoma volume and postoperative volume of hematoma cavity and pneumocephalus have a potential to improve the prediction of clinically significant recurrence (Tab. 6, Fig. 3, Ref. 51). Text in PDF www.elis.sk Keywords: subdural hematoma, recurrence, pneumocephalus, risk factors.

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